ORIGINAL: Skymac
I've seen it all now...
How about a D/F cub. Joe brought this modified cub to the Madras, Oregon jet meet in 1996. Flew great.
I was stationed in Japan for almost 6 years and if Taiwan is the same as Japan when it comes to land use and flying fields, their field was probably built on a flood plain which accounts for all the silt debris on the flying site. It is easier to blow it off than to suck it up.
RH